5 of them occured within one week, which is an uncommonly high rate of occurrence. There is quite possibly no connection other than coincidence -- 2 of the 7 w

5 of them occured within one week, which is an uncommonly high rate of occurrence. There is quite possibly no connection other than coincidence -- 2 of the 7 we're mechanical problems, after all -- but there may be some connection. For example, wind conditions could have been very unfavorable, putting the smaller aircraft closer to their range limits, exacerbating any other problems by reducing fuel margin.